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Finding the Fourth Proportional to 260,808,580.80, 391,464,813.60 and 158,771,908.80

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Solution

The fourth proportional to 260,808,580.80, 391,464,813.60 and 158,771,908.80 is: 238,311,237.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,808,580.80 : 391,464,813.60 = 158,771,908.80 : x
  2. Step 2: Convert to fraction form
    260,808,580.80/391,464,813.60 = 158,771,908.80/x
  3. Step 3: Cross multiply
    260,808,580.80x = 391,464,813.60 × 158,771,908.80
  4. Step 4: Simplify right side
    260,808,580.80x = 62,153,615,683,308,208
  5. Step 5: Solve for x
    x = 62,153,615,683,308,208/260,808,580.80
  6. Step 6: Final answer
    x = 238,311,237.66

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.